Dental tool



FIG. 1 is a perspective view showing the top, front, and left sides of a dental tool according to the new design;

FIG. 2 is a front elevation view thereof, the rear elevation and the top and bottom plan views being identical to the front elevation view as shown; and,

FIG. 3 is a right side elevational view thereof, the left side being identical to the right side as shown.

The dotted line depiction of dental implements in FIGS. 1 and 2 is for illustrative purposes only, and does not form any part of the claimed design. 

The ornamental design for a dental tool, as shown and described. 